Self-Riggers and disassembly of wings

I use an Udo rigger and can put my Ventus B together solo-typically 20 to=
30 minutes from trailer open to finished taping and control check. Howe=
ver I have been unable to get the first wing out by myself when putting t=
he ship away. Without someone on the tip to oscillate the wing, I cannot=
get the spar to start out no matter how hard I pull on the root. I set =
up the Udo device to take the load off the wing-but still no luck. Anybo=
dy out there come up with a system to do this?